1,416 results
- Life
Mosquito fish count comrades to stay alive
New experiments indicate that mosquito fish can count small numbers of companions swimming in different groups, an ability that apparently evolved to assist these fish in avoiding predators.
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- Anthropology
Hobbit foot, hippo skulls deepen ancestral mystery
Hobbit fossils pose puzzling evolutionary questions for scientists in two new studies, one of hobbit foot bones and another of brain size in extinct pygmy hippos.
- Life
Male chimps exchange meat for sex
A long-term study of chimps living in western Africa indicates that males hunt down monkeys not only to eat their meat, but also to exchange the meat for sex with female chimps.
- Humans
Neandertal mitochondrial DNA deciphered
Researchers have completed a mitochondrial genome sequence from a Neandertal. DNA taken from a 38,000-year-old bone indicates that humans and Neandertals diverged 660,000 years ago and are distinct groups.
- Life
Tickling apes reveals laughter’s origins
Roots of laughter go back at least 10 to 16 million years, study of romping apes suggests.
- Life
Capuchin monkeys choose the right tool for the nut
New field experiments indicate that wild capuchin monkeys choose the most effective stones for cracking nuts, suggesting deep evolutionary roots for the use of stone tools.
- Life
Gene regulation makes the human
The regulation of genes, rather than genes alone, may have been crucial to primate evolution.
- Life
Nature’s chronic boozers
Tree shrews pub-crawl nightly from flower to flower for fermented palm nectar.
- Life
Aging gets with the program
A study on yeast organisms reveals checkpoints in the aging process: the buildup of certain lipids and fatty acids, and the health of the cell's powerhouses. Drugs could target these checkpoints.
- Life
A honeybee tells two from three
Honeybees can generalize about numbers, at least up to three, a new study reports.
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Primate’s Progress: Macaque genome is usefully different
A group of 35 labs has unveiled a draft of the genome of the rhesus macaque, the most widely used laboratory primate and a cousin to people.
